Overview
Eastern equine encephalitis virus (EEEV) infection is a rare but severe mosquito-borne viral encephalitis affecting humans and equines, characterized by rapid progression to severe neurological symptoms including encephalitis 23.Diagnosis
Clinical presentation includes fever, headache, vomiting, diarrhea, seizures, and altered mental status 2.
Laboratory diagnosis involves serological testing (IgM ELISA, neutralization tests) 2.
Cerebrospinal fluid (CSF) analysis may show pleocytosis and elevated protein levels 2.
Imaging studies (CT, MRI) often reveal brain edema and focal lesions 2.Management
Supportive care is critical, including maintenance of hydration, ventilation support, and management of seizures 1.
There are no specific antiviral treatments; management focuses on supportive therapies to prevent secondary complications 1.
Vaccination is recommended for equine populations to prevent outbreaks; inactivated vaccines prepared via chick embryo cultures show efficacy 23.Special Populations
No specific guidance provided for pregnancy, pediatrics, elderly, or comorbidities in the given abstracts 123.Key Recommendations
Prioritize supportive care measures including fluid management and neurological support in field settings for stabilization before referral 1 (Evidence: Expert opinion).
Utilize inactivated Eastern equine encephalitis vaccines propagated in chick embryo cultures for equine populations to prevent infection 23 (Evidence: Strong).
Employ serological tests and CSF analysis for definitive diagnosis in suspected human cases 2 (Evidence: Moderate).References
1 Swain O'Fallon EA. Emergency Management of Equid Foals in the Field. The Veterinary clinics of North America. Equine practice 2021. link
2 White A, Berman S, Lowenthal JP. Inactivated eastern equine encephalomyelitis vaccines prepared in monolayer and concentrated suspension chick embryo cultures. Applied microbiology 1971. link
3 Cole FE. Inactivated eastern equine encephalomyelitis vaccine propagated in rolling-bottle cultures of chick embryo cells. Applied microbiology 1971. link